摘要
以剪胀锚固理论为指导,视矩形巷道顶板岩层为层状块体结构,根据锚固岩层结构面的剪胀力学特性,选用层状块体材料构建相似模拟试验模型。通过物理模拟实验,分析研究煤层巷道顶板岩层预应力锚固系统中锚杆的受力状态及其加固机理,得到预应力锚固系统中相关参数间的力学关系。
In this paper, using the dilatancy anchorage theory as the guide, taking the roof strata of rectangular roadway as layered block structure, according to the dilatancy mechanical characteristics of the anchorage rock structural surface, the test chooses layered block structure materials to build simulation test model. Through the physical simulation experiment, anchoring bolt~ stress state and strengthening mechanism in coal seam roof prestressed anchor system are analyzed, and mechanical relationship among correlation pa- rameters in prestressed anchor system is obtained.
出处
《煤矿安全》
CAS
北大核心
2013年第6期45-47,共3页
Safety in Coal Mines
关键词
剪胀锚固理论
层状块体结构
预应力锚固系统
相似模拟实验
dilatancy anchorage theory
layered block structure
prestressed anchorage system
simulation experiment
